Just became a mCCR-diver

JonORunde · 29th May 2006, 14:06

Quote: (Originally Posted by zèècalcoene)

Yes indeed, a VR3 or HSE will be inevitable..
As well as a secondary PPO2 readout..
Marc Munroe's dislplays work fine and are very reliable (PPO2.com) or via TECME..
However, I am speaking from a practical point of view... the calibration method... i.e. removing end-cap and using a small screw driver to calibrate the sensors is a hassle..
I used them, so I know.
Look for a system with auto-calibration (as done with VR3 or HSE)

Just wanted to help

cheers

Ivan

Thanks for the info, it looks like it will be a VR3, and som stuff from tecme.
Got some of the other bits from Martin, -so I will probably contact him soon

Thanks for the tips though,....

jon o

MaxMekker · 29th May 2006, 15:13

If you need som help with elektronic let me know

I have tools to make almost everything you need.

I am going to make a Rebreather this summer, but I want a eCCR.
so if anybody know where to get a solionid I need one.

RH

annetj · 31st May 2006, 18:43

Quote: (Originally Posted by MaxMekker)

If you need som help with elektronic let me know

I have tools to make almost everything you need.

I am going to make a Rebreather this summer, but I want a eCCR.
so if anybody know where to get a solionid I need one.

RH

WE drive past some place called Norsk Solenoide By the Ring 3 way at Økern in Oslo. Maybe they can help?

Thougt you had bought a Meg by the way?

Anne

**jmurba** · 6th June 2006, 21:40

However, Oxy2 is not good for mCCR.. there is somewhere an article explaining this .. but it is in French and I can't find it anymore.. perhaps the French memebers in this group could translate it and post it???? I could also translate it for u.. if I can get this paper..

++++ hi Fu..long time ago i wrote an article on the former dragerkiss forum about oxy2 and mccr's
shortly : the oxy2 evaluates the diver underwater effort comparing the loop Fo2 at the begining of the dive and the loop fo2 during the dive, for example one starts diving scr injecting .32 nitrox, at the begining of the dive the oxy 2 mesures a 0.28 fo2 in the loop and will consider that the normal effort of the diver is a fio2 of .28, if during the dive the oxy2 mesures a .20 fo2 the oxy 2 would consider that the diver is making a great effort and would increase the diver deco obligation .
if one uses an oxy2 for ccr, one starts the dive for example with a .80 ifo2 in the loop, once at 50m the oxy2 will mesure a .25 fo2 and will think that the diver is making a huge effort (because de difference in fo2 between 0.80 and O.25 is huge in ccr mode comparated to scr mode) and will increase dramaticaly his deco duration.
the only way of using the oxy2 for ccr is to start the dive with very weak o2 loop, a good idea for those who definitly want to die.

I hope it can help

regards

jean mi

JonORunde · 7th June 2006, 09:12

Aha, thaks for that -It explains why I am seeing different results

For now, I mainly use it to give me between 30-40% nitrox -and then deco-info seems correct -and that makes sense now..

The VR3 is hopefully soon on it's way -then this will no longer be an issue for me

Jon O

29th May 2006, 14:06	#11 (permalink)
JonORunde New Member Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Dec 2005 Location: Norway Posts: 88	Re: Just became a mCCR-diver Quote: (Originally Posted by zèècalcoene) Yes indeed, a VR3 or HSE will be inevitable.. As well as a secondary PPO2 readout.. Marc Munroe's dislplays work fine and are very reliable (PPO2.com) or via TECME.. However, I am speaking from a practical point of view... the calibration method... i.e. removing end-cap and using a small screw driver to calibrate the sensors is a hassle.. I used them, so I know. Look for a system with auto-calibration (as done with VR3 or HSE) Just wanted to help cheers Ivan Thanks for the info, it looks like it will be a VR3, and som stuff from tecme. Got some of the other bits from Martin, -so I will probably contact him soon Thanks for the tips though,.... jon o
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29th May 2006, 15:13	#12 (permalink)
MaxMekker New Member Current Rebreather/s: Classic Kiss Other Rebreather/s: Join Date: Nov 2005 Location: Norway, Skien Posts: 32	Re: Just became a mCCR-diver If you need som help with elektronic let me know I have tools to make almost everything you need. I am going to make a Rebreather this summer, but I want a eCCR. so if anybody know where to get a solionid I need one. RH __________________ Tusenkunstner
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31st May 2006, 18:43	#13 (permalink)
annetj New Member Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Jan 2006 Location: Oslo, Norway Posts: 26	Re: Just became a mCCR-diver Quote: (Originally Posted by MaxMekker) If you need som help with elektronic let me know I have tools to make almost everything you need. I am going to make a Rebreather this summer, but I want a eCCR. so if anybody know where to get a solionid I need one. RH WE drive past some place called Norsk Solenoide By the Ring 3 way at Økern in Oslo. Maybe they can help? Thougt you had bought a Meg by the way? Anne
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6th June 2006, 21:40	#14 (permalink)
jmurba wet bear Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: May 2006 Location: cannes france Posts: 720	Re: Just became a mCCR-diver However, Oxy2 is not good for mCCR.. there is somewhere an article explaining this .. but it is in French and I can't find it anymore.. perhaps the French memebers in this group could translate it and post it???? I could also translate it for u.. if I can get this paper.. ++++ hi Fu..long time ago i wrote an article on the former dragerkiss forum about oxy2 and mccr's shortly : the oxy2 evaluates the diver underwater effort comparing the loop Fo2 at the begining of the dive and the loop fo2 during the dive, for example one starts diving scr injecting .32 nitrox, at the begining of the dive the oxy 2 mesures a 0.28 fo2 in the loop and will consider that the normal effort of the diver is a fio2 of .28, if during the dive the oxy2 mesures a .20 fo2 the oxy 2 would consider that the diver is making a great effort and would increase the diver deco obligation . if one uses an oxy2 for ccr, one starts the dive for example with a .80 ifo2 in the loop, once at 50m the oxy2 will mesure a .25 fo2 and will think that the diver is making a huge effort (because de difference in fo2 between 0.80 and O.25 is huge in ccr mode comparated to scr mode) and will increase dramaticaly his deco duration. the only way of using the oxy2 for ccr is to start the dive with very weak o2 loop, a good idea for those who definitly want to die. I hope it can help regards jean mi
(Online)

7th June 2006, 09:12	#15 (permalink)
JonORunde New Member Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Dec 2005 Location: Norway Posts: 88	Re: Just became a mCCR-diver Aha, thaks for that -It explains why I am seeing different results For now, I mainly use it to give me between 30-40% nitrox -and then deco-info seems correct -and that makes sense now.. The VR3 is hopefully soon on it's way -then this will no longer be an issue for me Jon O
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